New documents revealed this week that city officials pushed for a “no-fly zone” for geese far wider than a five-mile radius from airports suggested by federal officials — even discussing the need for a 30-mile kill zone.

The minutes from the Nov. 15, 2006, meeting of the Bird Hazard Task Force — the team that would later approve the controversial, middle-of-the-night massacre of geese in Prospect Park this summer — reveal a vigorous debate among various city, state and federal agencies about just how far they would go to ensure that airplanes would not collide with geese.

“A five-mile radius is sensible, not further than five miles,” a representative from the U.S. Department of Agriculture said at the meeting, according to the minutes, which we obtained through a Freedom of Information Law request. The minutes typically only provide the name of the agency speaking during the conversation, not the speaker.

But then a representative of the city’s Department of Environmental Protection said that a five-mile radius is simply not adequate.

“Five miles is just a number,” the representative said. “The liability issue can extend 30 miles.”

“Geese will be the hardest to control in parks, [there is] an emotional issue,” said Kim Wagner, a representative with Wildlife Services, the federal agency that would go on to gas the geese under contract from the city.